Cita APA

E.Blackwood Dr.Paul, E.Etter Richard, M.Garrels Dr.Robert, & Mckown Stephens Margaret. (1962). The world and its wonders.( Kỳ quan thế giới). Chicago: The Childs world.

Citación estilo Chicago

E.Blackwood Dr.Paul, E.Etter Richard, M.Garrels Dr.Robert, y Mckown Stephens Margaret. The World and Its Wonders.( Kỳ Quan Thế Giới). Chicago: The Childs world, 1962.

Cita MLA

E.Blackwood Dr.Paul, E.Etter Richard, M.Garrels Dr.Robert, y Mckown Stephens Margaret. The World and Its Wonders.( Kỳ Quan Thế Giới). Chicago: The Childs world, 1962.